QUICK HACK and CREDITS
       Enclosed are different versions of the MAC fireworks screen saver
J.SAFFER, uploaded in the file PYROSAVE.ARC (#11791).  I played around with
the subroutine called 'continue' and changed the loop counter values.
I figured out that on a stock 520 w/TOS 1.4 a value of 4285 equals 1 minute,
8570 works for 2 minutes, 12855 for 3 minutes, etc...   Download J.SAFFERs
file for the complete source code. 



VERSIONS:
       SAVER_1.PRG  delay for 1 minute
       SAVER_3.PRG  delay for 3 minutes
       SAVER_10.prg delay for 10 minutes
       etc...


THE CHANGE:
       Here is the modified line:

continue:
        move.w  vblanks,d0      ; get the vblanks counter value
        addq.w  #1,d0           ; increment the counter
        move.w  d0,vblanks      ; store the vblanks counter value
        cmpi.w  #4285,d0       ; see if the appropriate time has passed
                  ^
**** CHANGE THIS  |  TO A MULTIPLE OF 4285 for x number of minutes ******


        bne     gohome          ; otherwise skip it

        move.l  newscreen,d0    ; get the screen address
        movea.l d0,a0           ; move the newscreen address into a0
        move.w  #0,d0           ; set the loop counter to zero


HOW COMPILED
      I had problems with the original saver.prg crashing with TURBOST
ver 1.6.  On a hunch I compiled it under MADMAC from the developer's
kit using the following call:  mac saver_1.s -p   SAVER.PRG seems to
work now with TURBOST.  

HOW TESTED:
      These were tested on a mono monitor ST only.  I see no reason
why they shouldn't work on a color system.


               ENJOY,
                      Brian Hunt (DILITHIUM, GEnie)
                      Aug 20, 1989